FAA Urges Airlines To Inspect Another Boeing 737 Model For Mid-Air Door Blowout Risks

Boeing shares fell in premarket trading in New York following the Federal Aviation Administration's announcement on Sunday recommending airlines to inspect another variant of the Boeing 737 for faulty mid-exit door plugs. This development occurred weeks after an incident where a door detached from an Alaska Airlines flight.

"As an added layer of safety, the Federal Aviation Administration (FAA) is recommending that operators of Boeing 737-900ER aircraft visually inspect mid-exit door plugs to ensure the door is properly secured," the FAA wrote in a statement. 

The 900ER is an older aircraft not part of the Max family. Data from the plane manufacturer shows 505 of these planes are used by US domestic airline carriers and others worldwide. Major operators of the plane include United Airlines Holdings, Alaska Airlines, and Delta Air Lines.